throbbing pulse at the back of my neck worse after lying dow

i have been suffering from anxiety and get used to some of the weird things that you have with that, two weeks ago i started with a really really bad head throbbing all i could do was go to bed, i blamed this on the time of the month,painkillers did not take it of and it went on its own after about 16 hours the next day i was fine the next day it started again but after 12 hours the pain moved to the left side of my head and to my neck just at the base of my scull and i was starting to be sick,i was taken to out of hours doctor at 2am but other than blood pressure being 186/119 they could not find a reason for it, two weeks later i still have this sharp throb on the pulse point on the neck that wakes me up in the night it seems worse after laying down,i have been on beta blockers for anxiety and high blood pressure doctor just keeps uping the dose but does not seemed concerned with my neck,she has not even looked at it,i an scared its a blockage or something sinister its so painful,oh blood pressure yest was 160/100 now on 320mg beta blockers instead of 160mg